he also announced pros posing two new gun control laws for the city. one that bans hollow point bullets, another that notifies law enforcement when anyone buys 500 rounds or more of any type of ammunition. now marin county is going to do a gun buy-back. the district attorney says they will have it on martin luther king day in mid-january. he says not only are they buying back weapons, but get this parents, they say you can also sell your child's ultraviolet videogames back. clearly, you know, it's really strange, holding that weapon, those machine guns in my hand like that and you can see why they're buoyed by the success but they acknowledge there are still thousands of these firearms still on the streets and new ones being sold every day as well as videogames. >> thank you. >>> san francisco police are already planning another gun buy-back. but cbs 5 reporter mark sayre shows us it may be impossible to keep ahead of a huge spike in gun sales. mark. >> reporter: well, juliette, not only is the renewed push to restrict guns coming from washington but t